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DS8870 potential write response time issue when running RAID10

Flashes (Alerts)


Abstract

Potential write response time issue on DS8870 when running RAID10, which could result in a temporary loss of access to data.

Content

Write response time may not be guaranteed under certain Disk Drive Module (DDM) hardware error conditions; this could affect write I/O performance or cause a temporary loss of access until the DDM responds. Customers running certain R7.0 levels (DS8870 bundles 87.0.x.x - 87.5.14.0) configured with RAID10 arrays are exposed.

Note: There have been no reported events of this issue at clients; it was discovered in IBM internal testing.

Mitigation

None.

Resolution/Support

The fix to this issue is now available in DS8870 bundle 87.5.17.0. Clients with DS8870s configured with RAID10 arrays should arrange with IBM Service to update their firmware to a bundle with the fix at their earliest convenience.

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Document Information

Modified date:
25 September 2022

UID

ssg1S1004352

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